Passage Planning Guide - Straits of Malacca and Singapore (SOMS), 2023-24 Edition

2023 - 2024
This publication provides passage planning guidance for Masters and navigating officers when transiting the Straits of Malacca and Singapore. The guidance applies in either direction through the Straits between One Fathom Bank (OFB) and Horsburgh and includes an overview of the navigational references for each leg of the route. It is suitable for all classes of ship. This new edition has been fully revised to incorporate the latest guidance and practical advice for ships transiting the region, with reference to high vigilance areas, Straits Pilot Services, TSS and VTS information.
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This Guide summarises essential passage planning practice, including elements local to the Straits, to help navigating officers compile an effective passage plan. It includes practical guidance for the transit, with reference to manning levels, traffic, tugs, pilotage, anchorages, tidal streams, communications, etc.

Annotated chartlets are provided for each leg of the transit, illustrating aids to navigation and potential hazards to shipping. The chartlets are supported by guidance notes containing further navigational and safety information.

In preparation for this new edition, Witherbys have worked in consultation with Straits Pilots, harbour pilots, port authorities, local navigation superintendents and shipmasters transiting the Straits.

The Guide illustrates areas where high vigilance is required and lists the pre-emptive measures that should be taken by the ship. These areas have been revised and expanded, with input from the pilots who regularly navigate these challenging areas, to include the area around Muda Selatan. Also included are a number of case studies that examine the causes of various groundings and collisions in the Straits.

This new edition now includes a tidal streams supplement booklet containing high quality diagrams to provide mariners with information about the tidal conditions they are likely to encounter during their transits through the Straits.

Key information about the ordering of pilots for Singapore has been updated and presented in an easy to use format. Sections on key depths for ships transiting East and Westbound have been revised into large, pull-out sections to enable the bridge team to gain an enhanced overview of the entire passage.

Information is also taken from appropriate nautical publications and from:

  • Rules for Vessels Navigating through the Straits of Malacca and Singapore
  • STRAITREP – Mandatory Reporting Procedures
  • Port Marine Circulars (Singapore)
  • IMO assembly resolutions.
Witherbys Witherbys titles are developed using scripts developed by technical experts that are peer reviewed within work groups. Typically, they seek to improve understanding of the regulations, recommendations and guidelines issued by Industry. Witherbys staff have significant expertise in the fields of navigation and hazardous cargoes as well as in the presentation of complex subjects in a graphic and easy to understand manner.
Number of Pages: 247 ISBN: 9781914992827 Published Date: November 2022 Book Height: 305 mm Book Width: 255 mm Weight: 1.71 kg Publication Date: November 2022 Author: Witherby Publishing Group